1 files changed, 8 insertions, 1 deletions
diff --git a/debug.h b/debug.h
index 1241f67..5044156 100644
--- a/debug.h
+++ b/debug.h
@@ -89,8 +89,15 @@ enum DBG_OPTION {
 #endif
 
   /**
-   * 
+   * Filter option. Argument is a const char *.
+   * fmt := [set[,set]*]*
+   * set := [+-]channel
+   *     |  class[+-]channel
+   *     |  [+-]all   
    */
+#ifdef WITH_DBG_FILTER
+  DBG_OPTION_FILTER,
+#endif
 };
 
 typedef enum {